Csk Square Drv 410 Stainless Self Tapping Screw

• the square drive gives a neat finish and enables a strong hold when fixing
• Made of Stainless steel 410 which is superior to regular steel and zinc plated fasteners, the case-hardened, extruded-thread wood screw has threads that are very deep and sharp.
• Tin & Zinc based mechanically deposited high anti-corrosive Ruspert Coating to provide additional cover against scratches, gas and weathering

Additional information




Stainless Steel 410/304 / 316, Carbon Steel, Alloy Steel And So On

Head Type


Drive Type

Phil, Torx, slotted, Phil & Slotted combination, Hex Socket, square


Full Thread, Partical Thread, Tapping Thread

Surface Treatment

Passivation, polished, Black Phosphate, Gray, HDG, Ruspert, Nickel, Electroplating (color, blue, white, black zinc, Ni, Cr, tin, copper, silver), Black oxide coatin, ruspert


Bulk in cartons (25kg Max.) + wooden pallets or according to customer demand.


Metal, timber, plywood, laminates, some plastics.

Csk Square Drv 410 Stainless Self Tapping Screw

A countersunk or as regularly shortened as CSK Screw is a fastener that is sunk into a piece of lumber.

The heads of the Stainless Steel Countersunk Screw will sit below the surface of the material.


A/AB Sheet Metal Screws- Sheet metal screws are engineered for connecting thinner metal objects to one another or connecting metal to wood, plastic, and other materials.

Type A sheet metal screws have wider spaced threads for self-starting in thinner metal or plywood.

Type AB sheet metal screws have more threads per inch and are more effective in brittle materials than Type A.

the top manufacturer of BI-METAL SCREW in China

Fastener SS304/SS316 Body + SS410/420/CS Point, Self Drilling/Tapping Roofing Bi-Metal Screw with SS EPDM Washer

Our bi-metal screw is made by welding stainless steel together with SS420 or carbon steel.

Its head and body is composed of 300 series stainless steel for corrosion resistance, and its point is composed of SS420 or carbon steel hardened for self-drilling and self-tapping.

Our sharp point bi-metal screw drill capacity is up to 1mm+1mm galvanized steel plate without pre-dirlling, which improves work efficiency for projects.

You will see from videos of:

· How is bi-metal screw made

· How bi-metal screws are tested


The SuperFix Bi-metal Screws are well tested such as:
· Hardness
· Torque test
· Wring Force
· Tensile Strength
· The shear stress
· Extraction resistance and pull through
· Coating thickness SST (up to 1500 hrs)

More Bi-Metal Screws

  1. Torx drive Bi-metal screw with bonded washer self drilling
  2. Hex washer head Bi-metal screw with A2 bonded washer drill point
  3. Wafer head Bi-metal self drilling screw ruspert coated 500hrs
  4. CSK head Bi-metal Tek self drilling screw ruspert coated

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